<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title></title>
	<script>
		//封装自己的slice方法(数组)
		var arr=[1,2,3,4,5,6,7];
		function myslice(start,end){
			var arr1=[];

		}
		myslice()
	</script>
</head>
<body>
	
</body>
</html>